Broom-sewing machine.



A. E. MILLER.

BROOM SEWING MACHINE. APPLIUATION FILED 0OT.5, 1910.

1,062,546. Patented May 2o, 1913.

11 SHEETS-SHEET 1.

' Q. m l

wit" @Mela A. E. MILLER. BROOM SEWING MACHINE.

APPLIUATION FILED 0OI'.5, 1910.

1,062,546. Patented May 20, 1913.

` 11 SHEETS-SHEET 2.

/2 /20 //7 A @Cy 21 COLUMBIA PLANOGRAPH co., WASHINGTON, D. c.

A. E, MILLER. BROOM SEWING MACHINE.

APPLIOATION FILED 0012.5, 1910.

1,062,546. PatenteaMay 20,1913.' d

11 SHEETS-SHEET 3.

MLM 331.'. W L

GHoznmS.

COLUMBIA PLANOGRAPH C0..WASHINOTON. DA c.

A. E. MILLER.

BROOM SEWING MACHINE.

APPLIOATION FILED oom, 1910.

1,062,546. Patented May 2o, 1913.

11 SHEETS-SHEET 4.

CDLUMEIA PLANDGRAPH co., WASHINUTON, D. c.

' A. E. MILLER. BROOM SEWING MACHINE. APPLICATION FILED 0GT.5, 1910.

1,062,546. Patented May 20, 1913.

11 SHEETS-SEEET 5.

I y @im DLUMBM PMNOURAPH C0., WASHINGTON. D. C.

A. E. MILLER. BROOM SEWING MACHINE. APPLIOATION FILED 001.5, 1910.

COLUMBIA PLANOURAPH c0..wAsHlu'rc|N, D. c.

A. E. MILLER.

f EEooM SEWING MACHINE.

11 SHEETS-SHEET 7.

0o Ya @Mwah ccLUMBIA PLANQGRAPH CO., WASHlNuToNY n. c.

A. E. MILLER. BRooM SEWING MACHINE.

APPLICATION FILED 0T.5, 1910. 1,062,546. Patented May 20, 1913.

I 11 SHEETS-SHEET 8.

V COLUMBIA PLANOGRAPH C0..WAsHING'roN. n. c.

A. E. MILLER. BROOM SEWING MACHINE. APPLIOATION FILED oom, 191.0.Patented Maygo, 1913.

11 SHEETS-SHEET 9.

COLUMBIA PLANOGRAPH ccwAsM|NaToN, D. c.

A. E. MILLER. BROOM SEWING MACHINE. APPLICATION FILED 00T.5, 19410.

Patented May .20, 1913.

11 SHEETS-snuit).

A. E. MILLER.

BROOM SEWING MACHINE.` APPLICATION FILED 00T;5, 1910. 1,062,546 PatentedMay 20, 1913.

. l1 SHEETS-SHEET 11.

CQLUMBIA PLANOGRAPH b..wAsHlNGTON, .c.

Fig. 9.

TTED STATES PATENT FFTCE.

ANDREW E. MILLER, OF BALTIMORE, MARYLAND, ASSIGNOR TO HAMILTON CASSARD,OF BALTIMORE, MARYLAND.

BROOM-SEWING MACHINE.

T0 all whom t may concern.'

Be it known that 1, ANDREW E. MILLER, a subject of the King of England,residing at Baltimore city, in the State of Maryland, have inventedcertain new and useful 1mprovements in Broom- Sewing Machines; and 1 dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

My invention relates to improvements in broom sewing machines, and itcomprises several different improvements.

The main objectpof my invention is to produce a cheap and simplemachine, semiautomatic in action, which will efciently stand the wearand tear'to which said machines are subjected.

Further objects of my invention are to provide for the use ofrotaryfmotions wherever possible, with direct action and positive feed.

Further objects will appear in the detailed description.

W'ith these objects in view, my invention consists in the constructionand combinations of parts as hereinafter described and claimed.

1n the accompanying drawings, which illustrate a complete machineembodying my invention-Figure 1 is a side view of the complete machinewith one of the gear covers removed. Fig. 2 is a front view of the same.Fig. 3 is a rear view of the same with one of the gear covers removed.Fig. l is a side view of the machine, taken on the side opposite toFig. 1. Fig. 5 is a vertical cross section through the vise and itsrelated parts. Fig. 5a is a view on a smaller scale, showing that thepivot of one of the vise arms, the top of the corresponding vise aw, andthe pivot of the operating needle are in the same straight line. Fig. 6is a longitudinal vertical section through the vise. Fig. 7 is ahorizontal cross section of the vise. Fig. 8 is a cross section on theline 8-8 of Fig. 9 is a side view of the curved gears for moving thevise up or down. Fig. 10 is a plan view partly in section showing thebroom band, needles and vise, the latter being shown in dotted lines.Fig. 11 is a similar view showing `the operation of the unthreadingdevice. Fig. 12 is a top view showing the movement of the needles, the

Specification of Letters Patent.

Application filed October 5, 1910.

Patented May 2o, 191s. Serial No. 585,525.

vise, supporting parts and needle operating means being shown in dottedlines. Fig. 13 is a perspective view on an enlarged scale of one of theneedles. Fig. 14 is a cross section of one of the needles on the line1&14 of Fig. 13. Fig. 15 is a cross section of a part of the gearingoperating the threader. Fig. 16 is an end view of the left-hand end ofFig. 15. Fig. 17 is a cross section on the line 17-17 of Fig. 15, andFig. 18 is a cross section, taken at right angles to the plane ofsection of Fig. 15, and lshowing part of the threader-operating gearing.

The main frame of the machine is made of heavy material, preferably castiron, and consists of two parallel upright pillars a and b, united by aweb a', and supported on a base cl. This base is not at right angles tothe pillars a and Z) but inclined thereto, the line e, Fig. 1,indicating the floor line. A space f is left between the pillars a and 0into which the vise may be swung and held during the sewing operation. gis a cross brace uniting the pillars a and Z) on one side, near thecenter.

Bolted or otherwise rmly attached to the pillar b is a bracket 71 inwhich is mounted a shaft z'. To the pillar a is similarly fastened abracket j, in which is mounted a shaft 7c. Secured to the shafts and 7cby bolts 0 is a bracket or casting m, cut away as shown at a, Fig. 5.These two shafts z' and are lthe pivotal supports on which thebroom-holding vise is supported and rocked, as hereinafter described. Alever g is secured to the casting m and has ears r eX- tending downbelow the shaft 7c. This lever is moved by the operator to shift thevise from the position shown in Fig. 1 to that shown in Fig. 2.Similarly the bracket m is provided with downwardly-extending ears s.

The broomsholding vise comprises two opposed pivotally-mounted jaws tand u. The jaw t is mounted upon a pivot shaft or pin o in the ears s bymeans of downwardlyextending arms y and 2, bent so as to cross the armsof the other jaw, Fig. Similarly the jaw u is supported by two bentvarms fw and a', upon the pivot pin or shaft z, mounted in the ears r.The jaws t and u are similarly shaped, but oppositelylisposed, as bestshown in Fig. 5. Each jaw has a fiat side plate 4L, two end plates, suchas 5, and an inwardly-inclined top 6, see Fig. 5, the

bottom o-f the jaw being open. lVithin the jaws are t-he clamps 7 and 8,which slide freely up and down in the jaws, but are secured againstlateral displacement by the guides, 9 and 10, projecting inwardly fromeach of the end plates These clamps are best shown in Figs. 5, 6 and 7.They are similarly shaped, but oppositely disposed. Each of themconsists of a back plate 11, having its top bent inwardly, as shown at12, and downwardly-projecting guide pieces 13, cach provided with an ear14, to which ears are attached the rods 15 and 16, by

. means of which rods and 16, the clamp may be moved up and down. Eachclamp is further provided with a projecting piece 17, and the end of theback plate 11 is provided with an inwardly-extending end piece 18,nearly vertical, and terminating in a horizontal extension 19, cut awayas shown at 20, and then extending slightly inward, as shown at 21, Fig.7. Thus a space 22, Fig. 7, is left, in which the broom handle isreceived, and the other parts just described firmly engage and hold thebroom in position when the jaws are brought together, as hereinafterdescribed. This closing of the jaws, and thereby of the clamps, isaccomplished as follows Tn the end plate 5 of one of the jaws is mounteda shaft 23, extending outside of said end plates a short. distance. Tothis shaft 23, near one end, is splined, or otherwise fastened, aratchet wheel 24, Fig. 2. An operating handle 25 is loosely mounted onthe shaft 23, on which handle is pivotally mounted a pawl 26, springpressed or not, as desired. Extending downwardly from the shaft 23 is anarm 27, in the lower end of which is supported one end of a stub shaft28, the other end of said shaft being supported on one of the jaw arms.On the shaft 28 is loosely mounted a pawl 29, having a projecting end30. This pawl is constantly pressed against the ratchet wheel 23 by thespring 31, coiled around the shaft 28. Attached to the jaws t and a area number of guide pulleys, such as 32 and 33, in sockets or bearings 35.Around these pulleys passes a sprocketchain 34, back and forth from onejaw to the other, one end of this chain being attached to a pin on oneof the jaws, and the other end to the shaft 23. The parts just describedare shown on Fig. 2, and the arrangement on the other side of the jaws,shown on Fig. 3, is substantially the same, as far as the guide pulleysand chain are involved.

By the construction just described, successive reciprocating movementsof the handle 25 tighten up the chains and clamp the broom firmlybetween the jaws. Vhen it is desired to release the broom, after it hasbeen sewed, the pawl 26 is lifted, and the handle 25 swung until itstrikes the part 30 of the pawl 29, thereby releasing the ratchet wheel24, and the jaws fall apart by their own weight.

The means for raising and lowering the broom clamps, so that successiverows of stitches may be sewed, will next be described. To each of theclamps is attached two rods, such as 15 and 16, Fig. 6. The lower endsof the rods 15 and 16 approach each other and are secured in a casting36, which casting is mounted on a pin 37 which projects from the end ofan arm 38, Figs. 6 and 8. Mad-e integral with the arm 38 is a cross arm39, having perforated ears 40 and 41, by means of which the arm 39 ismounted on the shaft 2. To the cross arm 39 is secured, or made integraltherewith, the arm 42 parallel to the arm 38, which arm 42 carries thesector gear 43. Similarly the rods from the other broom clamp ar-epivotally connected to the pin 44 on the arm 45, which arm carries asector gear 46, meshing with the gear 43. The outer end of the arm 45 isenlarged and bored out, as shown at 47, forming a bearing, which engagesthe shaft or pin o. Made integral with this bearing, and extendingdownwardly therefrom,is an extension 48, said extension and the arm 45forming a bell-crank lever. To the extension 48 is firmly bolted anoperating handle 49, Fig. 2. Obviously, by means of the connectionsljust described, a movement of the handle 49, one way or the other, willraise or lower the broom clamps. The handle 49 is held in one of itsadjusted positions by means of a curved and notched bar 50, carried byone of the j aw-supporting arms.

The centering of the vise jaws and broom clamps so that they will firmlyhold the broom, no matter of what size, shape or weight, when the handle25 is reciprocated to bring the jaws together, is accomplished by thefollowing means:

Each jaw is provided with a roller, numbered 51 and '52 on Fig. 5. Oneof these rollers is mounted on the shaft 23, and the other on a shaftparallel thereto. Between these rollers is a spear-head 53, with whichsaid rollers contact. The spear-head is carried on the end of a slidingarm 54. This arm slides freely in slotted guides 55 in the two-armedbracket m. To one arm of said bracket m is bolted a downwardly-extendingcurved arm 57, which, striking against the brace g, acts as a stop toprevent the vise from swinging out too far when the sewing is finished.

The sliding arm 54, by its movement, actuates the horizontal arm 58 of abell-crank lever pivotally mounted on a pin or shaft 60. This arm 58 hasone end slotted, and this slotted end embraces a block 56, pivoted onthe arm 54. The vertical arm of said bell-crank lever has connected toit by a pin 61 a link 62, the other end of which is pivotally connectedto a sleeve 63, which slides freely on the shaft z', Figs. 2 and 5. Thesleeve 63 is provided with two ridges 64, between which is located a pinon the to of an arm 65, fastened to t-he shaft 66, which is freelymounted in a long bearing 67, secured to one of the pillars. To theother end of the shaft 66 is secured a downwardly-extending arm 68, thelower end of which has attached to it by nuts 69 a pin 70, which engageswith an ear of a screwthreaded sleeve 71, which is adjustably secured toone end of a bent link 72, the other end of which is pivot-ally attachedto a sleeve 73. This sleeve 73 is loosely mounted on an arm 7a, which isloosely mounted on the shaft 75, which feeds the vise sidewise, aftereach stitch, with an intermittent motion. The rod 74 is attached to asleeve 7 6 mounted on the shaft 75, andto this sleeve 7 6 is attached anarm 77, which at its upper end carries a pawl 78, pressed by a spring79, into engagement with the teeth of a ratchet wheel 80, which is keyedor otherwise fas` tened to the shaft 75. To the sleeve 73 is pivotally'attached a connecting rod 81, which operates to feed the ratchet wheel80 with an intermittent motion, and is operated by means hereinafterdescribed. This swings the vise, after each stitch, to the properposition for another stitch. A spring 82 is attached at one end to therod 81, and at the other end to a suitable support, and this spring, bythe connections just described, holds the spear-head `53 constantly incont-act with the rollers 51 and 52.

Tt will thus be seen that the thickness of the broom automaticallydetermines the rate of feed, rendering unnecessary adjustment of thefeeding mechanism according to the size of the broom.

83 is the main driving shaft, and is mounted in suitable bearingscarried by the pillars. On this shaft is loosely mounted a drivingpulley 84, operated by a constantly-running belt, not shown. To theshaft 83 is keyed one member 85 of a cone clutch, the other member beingformed on the inside of the pulley 8a. The pulley 84 is slid along theshaft 83 by an ordinary fork 86, carried on the vertical arm 87 of abell-crank lever, which lever is pivoted at 88 upon a stud 96, attachedto and projecting from one of the pillars. The horizontal arm 89 of thisbell-crank lever has pivoted to it at 90 the upper end of a rod 91, thelower end of which is pivotally attached at 92 to a footlever 93,whiclris pivoted at 94 to the base of the machine, and is provided witha treadle 95. Obviously, the operator, by pressing down the treadle.,will throw the pulley 84., so as to cause the members of the cone clutchto en gage, thus operating the machine. When the operator removes hisfoot from the treadle, the weight of the parts and the resist-anceoffered by the machine will ordinarily cause the members of the clutchto separate, but, if desired, a spring may be placed under the lever 93for this purpose. On the stud 96 is loosely mounted a long sleeve 97,made integral with which, or attached to it, is a bell-crank lever,having an upwardly-extending arm 98 and a horizontal arm 99. To theouter end of the arm 99 is pivotally attached, by a universal oint, theupper end of the rod 81. The upper end of the arm 98 has, looselymounted upon it, a pulley 100 which engages with a cam 101, which formsa part of the member 85. A spring 102, coiled around the stud 96, andfastened at one end to a sleeve 103 fast on said stud, and at the otherto the sleeve 97, keeps the roller 100 always in contact with the cam101. TheA movement of the cam 101 causes the rod 81 to rise and fall,thus operating the ratchet wheel 80, and thereby the feeding mechanism,with an intermittent motion.

The feeding mechanism is operated by the ratchet wheel 80 by means ofthe following connections: To the pillar a. is attached a large gearcasing 104, and in suitable bearings therein the shaft is mounted. Thisshaft has fastened to it a worm wheel 105, u

which meshes with a large pinion 106, loosely mounted on the shaft 7c,said wheel and pinion being indicated in dotted lines on Fig. d. On oneside of it, this pinion has an Leshaped extension 107, which serves as abearing for a strap 108. One end of this strap is adjustably fastened bya bolt 109, in an ear 110, on the lever q. The other end of the strap isfastened to a bell-crank lever 111, pivoted at 112 on the lever q.Pivotally mounted on the lever 9 1, at 113, is a locking lever 114,having a pin 115, adapted to engage the bell crank lever 111. the wholeconstruction forming a band clutch.

When the parts are in the position shown in Fig. e', the clutch islocked, but when the lever 114 is thrown up, so as to be parallel withthe lever (j, the clutch is unlocked, as whenv the vise is swung intoposition at the beginning of the operation of sewing a broom.

@ne object of this machine is to imitate hand sewing, in which the bandpasses first under and then over the part thereof wrapped around thebroom.

The needles are of the form shown in F ig. 13, and consist of a curvedpart 110, having an eye 117 and a slot in which a stop device 118slides, to open or close the eye. The needle is firmly fixed in one arm119 of a bell-crank lever which has a bearing 120, and the other arm 121of which also has a bearing 122 on its outer end for the reception of a.pivot pin. The stop piece 118 has an extension 123 to which is fastenedthe lower end of a' bent spring bar 124. This spring bar passes througha bearing 125 attached to the arm 119. The needles are so arranged thattheir paths cross each other in the center of the broom, as shown inFig. 12.

The means for operating the needles will next be described.

Mounted on the top of each of the pillars by bolts, or any suitablesecuring means, is a casting 126, terminating in a shaft 127, on whichthe bearing 120 is mounted. 0n a pin passing through the bearing aremounted the two ends of a split connecting rod 128, between the parts ofwhich the needle passes. The lower end of this rod is pivotally attachedto a pin 129 on a crank 130, mounted on a shaft 131 in bearings 132 onone of the pillars. On the shaft 131 is mounted a pinion 133 whichmeshes with a worm wheel 134 on the shaft 83. Obviously, the rotation ofthe shaft 83 will, by the connections just described, cause thereciprocation of the needle. A gear cover 135 conceals the gears justdescribed.

The construction of the needle, its operating mechanism, and thethreader and unthreader mechanism are substantially the same on bothsides of the machine, and therefore only one side will be described.

1t should be noted that when the needle has made its forward strokethrough the broom, the pivot of the jaw-supporting arm, the top of thecorresponding jaw, the center of the corresponding needle, and the pivotof said needle, are in the same straight line, as shown in Fig. 5a. Thisinsures that the path of the needle shall always be correct, through thebroom, at an angle to its horizontal central line, under the band at theside nearest the needle pivot and above it on the other side, and alsoinsures that the band shall be drawn through the broom in a W-shapedpath, as in hand-sewing. It should also be noted that, as usual in broomsewing machines, the thread or band, is not pushed through the broom,but drawn through it, necessitating the threading and unthreading of aneedle at each stitch.

vThe unthreading mechanism will next be described. In some of thefigures, this mechanism has been omitted, to avoid complication, but itis shown in Figs. 1 and 3. It consists of an arm 136 xed to the shaft 83and terminating in a spool 137, largest at the outer end, as best shownin Fig. 11. The unthreader may be arranged to take either the tight endor the loose end of the thread or band, as desired.

rFhe threading mechanism will next be described, reference being made toFigs. 10-18. It consists of a cylindrical casting 138, open at one endand firmly fixed to the shaft 139 by any suitable means. In this castingis mounted a shaft 140, having thereon a sleeve 141. Attached to thissleeve and passing out through a slotin the casting is an arm 142, sobent that its outer half nearly fits upon the outer surface of thecasting, while its extreme edge fits tightly upon said casting. A bentspring 143, fastened at one end to said casting, normally holds said armagainst said casting, as shown in full lilies in Fig. 16.

The shaft 139 is carried ina sleeve 144, which in turn is carried in acasing made of several parts. 145 represents the part containing some ofthe gear wheels, Fig. 15, and is closed by a cover plate 146. The part145 terminates in a reduced cylindrical portion 147, on which is mountedanother part 148 of the casing. The part 148 consists of two cylindersplaced end to end, the opposite ends being open, one open end beingslipped over the part 147, and the other end being slipped over thethreader cylinder 138. In the hollow part 148 is a cam surface 149. Onthe shaft 140 is mounted an arm 150 having a. roller 151, which travelson the inner surface of said hollow7 part, being held thereagainst bythe tension of the spring 143. As the shaft 139 revolves the arm 142,once in each revolution, is 9 moved from the position shown in fulllines in Fig. 16 to that shown in dotted lines, when the roller 151comes in contact with the cam surface 149.

Fixedly mounted on the shaft 139 is a worm wheel 152 having a hub 153.This wheel meshes with a pinion 154, which is driven by the shaft 83 bythe connections shown in Figs. 3 and 18. On the shaft 83 is firmlymounted a worm wheel 155, which meshes with a pinion 156, which, bymeans of the compound movement shown in Fig. 18, drives the pinion 152,and thereby the shaft 139, at a varying rate of speed, a quick and aslow speed in each revolution. This is accomplished by the followingmeans: The shaft 157, carrying the pinion 156, and the shaft 158,carrying the pinion 154, are mounted in oppositely-located bearingsprojecting from a two-part casing 159. Bolted to the casing 159 is abracket 160, the upper part of which is bored out, forming a bearing forthe shaft 161. The shaft 157 has on its inner end a crank arm 162, inthe end of which is fixed a pin 163. The corresponding end of the shaft161 has a crank arm 164 fixed to it, the outer end of which carries apin 165. A link 166 connects the two pins 163 and 165. The other end ofthe shaft 161 is similarly connected to the shaft 158, but the crankconnections are arranged 180o apart on the shaft 161. Thus thesuccessively fast and slow movement is compounded, producing a very fastmovement at one (small) part of each revolution of the threader. Ofcourse, the threader would be inoperative, without some means foropening the eye of the needle at the proper time. This means is shown inFigs. 10 and 11. 167 represents a stout wire, bent to form a rightangle, and fastened to the casing of the threader. rlhe spring 124i onthe arm 119, carrying the needle 116, strikes this wire 167 at theproper time, drawing back the stop piece 118 and opening the eye of theneedle, whereupon the threader on the opposite side of the machine drawsthe thread or band into t-he open eye, as shown in Fig. 10.

The operation is as follows: The parts being in the position shown inFig. 1, the o erator takes a broom, and by a hand need e passes one endof the band, which has already been cutl to the proper length, throughthe broom near one edge thereof, and then winds the band twice aroundthe broom, doubling the free end around inside of the two strands fromabove, and then brings its back over the strands and passes it againt-hrough the broom above the strands. He then places the broom handle inthe space 22, with the broom between the clamps 7 and 8 in the vise. Hethen moves the hand lever 25 back and forth till the broom is firmlyclamped, this operation automatically adjust-ing the feeding mechanism,as described. lle then moves the lever 114 from the position shown inFig. i until it is par* allel with the lever g, which unlocks the bandclutch, and by a further movement of the levers 1111 and Q, swings thevise into the space f between the pillars a and He then puts his foot onthe treadle 95, thereby throwing the power on the machine. The sewingproceeds automatically, until a complete row of stitches has been made,when the operato-r removes his foot from the treadle 95, and the machinestops. The opera-ter then lifts the clamps 7 and 8, by means of thelever 49, winds a new band upon the broom as before, and the operationis repeated as often as desired. rlhen the nished article is unclamped.

While 1 have thus described my invention, l wish it to be distinctlyunderstood that 1 do not limit myself to the exact details shown anddescribed, as these might be Varied considerably without departing fromthe spirit of my invention.

I claim 1. 1n a broom sewing machine, the combination of .a support; avise pivotally mounted on said support; a rotatable gear wheel; a bandadapted to clamp the vise to said gear wheel whereby to move the vise; ascrew gear meshing with said gear wheel for actuating t-he same; andmeans for intermittently rotating said screw gear, substantially asdescribed.

2. 1n a broom sewing machine, the combination of a support; a visepivot-ally mounted on said support; a clamp compris- `ing a pair of awsvertically movable within ed on said support; a clamp comprising` a pairof jaws vertically movable within said vise; a pair of arms pivotallymounted on the vise and provided with intermeshing sector gears; rodsconnecting said arms with the clamp jaws; means for swinging one of saidarms whereby to raise and lower the jaws; and means for imparting anintermit- 'tent movement to said vise, substantially as described.

t. In a broom sewing machine, the comination of a support; a visepivotally mounted on said support; a worm gear journaled on said supportcoaxial with the vise pivot; an arm connected to said vise; a lever andband carried by said arm, said band adapted to engage with said wormgear whereby to swing the vise, and said band lever adapted formanipulating the band; a shaft journaled on the support; a screw gear onsaid shaft meshing with said worm gear; and means for impartingintermittent rotation to said screw gear shaft, substantially asdescribed.

5. 1n a broom sewing machine, the combination of a support; a visepivotally mounted on said support and adapted to receive brooms ofdifl'erent widths; means for imparting an intermittent swinging movementto the vise comprising a rotatable shaft; a pawl and ratchet, an arm foractuating the pawl, a rod having slidable engagement with' said arm, andactuating mechanism for moving the rod; a slidable sleeve; connectionsbetween the sleeve and the vise for sliding the sleeve in accordancewith the thickness of broom inserted in the vise; a shaft journaled onthe support; an arm mounted on the shaft and engaging with said sleeve;a second arm mounted on the shaft; and a link connected to said secondarm; said link having connection with the rod slidable on the pawlactuating arm whereby to control the operation of the pawl to determinethe rate of swinging movement of the vise, substantially as described.

G. 1n a broom sewing machine, the combination of a support; a visepivotally mounted on said support comprising a pair of jaws; mechanismfor feeding said vise step by step during the sewing operation; andmeans for controlling said feeding mechanism comprising a member havinginclined faces and mova'ble between the jaws of the vise, connect-ionsbetween said movable member and the vise feeding mechanism; and memberscarried by the vise jaws adapted to engage with the respective inclinedfaces of said member and position the same for the purpose set forth.

7. In a broom sewing machine, the combination of a support; a visepivotally mounted on said support comprising a pair of jaws; mechanismfor feeding said vise step by step during the sewing operation; andmeans for controlling said feeding mechanism comprising a member havinga pointed end and slidably mounted between the jaws of the vise, apivoted bell crank lever having one arm thereof connected with saidslidable member, connections between the other arm of said lever and thevise feeding mechanism; and rollers carried by the vise jaws adapted toengage with the pointed end of said slidable member and position the.same for the purpose set forth.

8. ln a broom sewing machine, the combination of a supporting` frame, abroom holdingvise pivotally supported thereby, and means for feedingsaid vise step by step during the sewing` operation, said meansincluding a main operating shaft, a secondary operating shaft providedwith a ratchet wheel affixed thereto, a pawl for said ratchet wheel; anarm carrying said pawl and loosely mounted on said secondary shaft, andadjustable connect-ions between said shafts including a bell-cranklever, a link carried by one end of said lever, one end of said linkbeing connected with the arm on said secondary shaft, substantially asdescribed.

9. In a broom sewing machine, the combination of a supporting frame, abroom holding vise pivotally supported thereon, and means for feedingsaid vise step by step during the sewing operation, said means includinga main shaft provided with a cam, a bell-crank lever driven by said cam,a link carried by said lever, an arm loosely engaging one end of saidlink, a secondary shaft on which said arm is mounted, a ratchet wheelfastened to said secondary shaft, a pawl for said ratchet, and a springfor holdinO said link as close to said ratchet wheel as possible,substantially as described.

10. In a broom sewing machine, the combination of a main frame, pivotalsupports thereon, a broom holding vise mounted on said supports, meansfor feeding said vise step by step. during the sewing operation, saidmeans including a worm wheel fixed on one of said pivotal supports, amain operating shaft, connections between said worm wheel and saidshaft, and a clutch for clamping or unclamping said vise to a part ofsaid worm wheel, so that said vise may be either moved by the movementof said worm wheel or independently thereof, substantially as described.

ll. in a broom sewing machine, the combination of a main frame, pivotal.supports thereon, a broom holding vise including two opposed jawspivotally mounted on said supports, means for feeding said vise step bystep during' the sewing operation, said means including a castingprovided with worm teeth and a friction surface, and said casting beingattached to one of said pivotal supports, and means for clamping andunclamping the vise to said frictional surface, whereby said vise isregularly fed during the sewing operation and may be unclamped and swungindependently of Said worm wheel at the beginning or end of the sewingoperation, substantially as described.

l2. In a broom sewing machine, the combination of a main frame, pivotalsupports thereon, a vise carried by said pivotal supports, n eans forfeeding said vise step by step during the sewing operation, said meansincluding a worm wheel fixed to one of said supports, and having africtional surface thereon, a band encircling said frictional surface,means for tightening and loosening said band upon said surface andsecuring it fast upon said surface, and a hand lever for swinging saidvise when unclamped from said frictional surface, substantially asdescribed.

13. In a broom sewing machine, the combination of a main frame, pivotalsupports thereon, a vise journaled on said supports, a worm wheel on oneof said supports for driving said vise, and provided with a frictionalsurface, a band encircling said surface and having one end fixed to ahand lever for operating said vise mounted on one of said supports, abell-crank lever pivoted on said hand lever, and a swinging leverprovided with a stop mounted on said' hand lever, whereby by movingsaidswinging lever said band may be brought. tightly into contact with saidfrictional surface, thereby clamping the vise and operating worm wheeltogether, so that the movement of the latter will move the former,during the sewing operation, substantially as described.

14. ln a broom sewing machine, the combination of a main frame, shaftscarried 'hereby forming pivotal supports, a bracket attached to saidsupports, a vise provided withAoppositely-arranged jaws supported bysaid pivotal supports, means for bringing the jaws of said vise towardeach other to clamp a broom, means for feeding said vise step by stepduring the sewing operation,

and means for automatically varying the' movement of said feedingmechanism, said means including a pair of rollers, one carried by eachof the jaws of the vise, a member sliding in said bracket and adapted tocontact with said rollers, and connections between said member' and thefeeding devices, whereby the movement of said member adjusts saidfeeding devices, substantially as described.

15. In a broom sewing' machine, the combination of a supporting' frame,shafts mounted thereon forming pivotal supports, a bracket secured tosaid pivotal supports, a vise composed of two oppositely-arranged jawseach having two downwardly-extending arms which cross each other', andare supported by said pivotal supports, means for feeding said vise stepby step during the sewing operation, and devices for clamping` andunclamping' said vise to and from said feeding' means, substantially asdescribed.

16. ln a broom sewing machine, the combination of a main frame, shaftsforming pivotal supports carried by said frame, a bracket secured tosaid shafts between their pivotally-placed ends, a vise comprising twooppositely-arranged jaws supported by said supports, feeding' mechanismfor said vise, and means for automatically adjusting said feedingmechanism according to the size of the broom in the vise, said meansincluding` a pair of rollers one mounted on each of the jaws of thevise, a spear head with which said rollers contact, a. bell-crank leverpivotally mounted on said bracket, a link connected to said bell-cranklever, a sliding member mounted on one of said supports, a pivoted leverone end of which engages said sliding member, a bar engaging the otheren d of said sliding member, an operating shaft for the feeding means,au arm mounted on said shaft, and a sliding bracket on said arm to whichsaid last-named rod is connected, substantially as described.

17. In a broom sewing machine, the combination of a main frame, a visecarried thereby including two oppositelyarranged jaws, a sliding clampmounted in each jaw, and devices swinging with said vise for raising andlowering' said clamps simultaneously, including an operating handle,curved gears meshing' with each other, and rods running from partssecured to said gears to said clamps, substantially as described.

18. In a broom sewing machine, the combination of a main frame, a visepivotally supported thereby comprising two oppositely-arrang'ed jaws, aclamp adapted to slide up and down in each jaw, a pair of rods connectedto each jaw, pivoted frames to which the lower ends of said rods areconnected, each frame having' a circular shaped gear, said gearsmeshing' with each other, and an operating handle secured to one of saidframes, substantially as described.

19. In a broom sewing machine, the combination of a main frame, a visepivo-tally supported thereby, said vise comprising' twooppositely-arranged jaws, each provided with a guide in its interior,two clamps, one mounted in each jaw, and adapted to slide up and downbetween said guides and the jaws, means for moving' said jaws up anddown, comprising' a pair of rods pivotallv connected to each clamp,frames to which the lower ends of each of said pair of rods ispive-tally connected, a pair of intermcshing circular shaped gears oneon each of said frames, an operating' handle secured to one of saidframes, and a notched bar holding' said handle in one of severalpossible adjusted positions, substantially as decribed.

20. ln a broom sewing machine, the combination of a main frame, sewing`mechanism comprising' vibrating' needles, a vise pivotally supported bysaid frame, said vise including' two oppositely-arranged jaws each witha pair of supporting' arms, which pairs cross each other and arepivotally mounted, the parts being' so arranged that, when a needle hasmade its forward stroke the pivotal point of support of said needle, thetop of one of said jaws and the pivotal point of its supporting' arm arein t-he same straight line, substantially as described.

2l. ln a broom sewing machine, a rotary threader therefor, comprising arota-ry hollow cylinder and means for driving' it, an arm projecting'out through the surface of said cylinder, a spring' for holding' saidarm normally against the outer surface of said cylinder, and means forlifting said arm against the tension of said spring once during eachrevolution of the threader, comprising a cam and an operating' armconnected to said first-named arm, substantially as described.

22. ln a broom sewing machine, a rotary threader therefor, comprising' asupport-ing bracket, one end of which is hollowed out and provided witha cam, a shaft mounted in said bracket, a hollow cylinder, one end ofwhich is secured to said shaft, an arm projecting' outwardly through aslot in said cylinder, a spring' holding' said arm ynormally in contactwith the outer surface of said cylinder, and means for lifting' said armagainst the tension of said spring' once during' each .revolution ofsaid cylinder, said means including a crank arm operatively connected tosaid first-named arm, said crank arm being provided with a rolleradapted to engage with said cam, substantially as described.

23. In a broom sewing' machine, the combination of a threader, a shaftcarrying' said threader, a second shaft driving' said firstnamed shaft,a third shaft driving said second shaft, and connections between saidsecond and third shafts for driving the threader shaft with a quick anda slow movement during each revolution, said connections including' acrank arm fixed to said second and third-named shafts, each 0f saidcrank arms being provided with a pin, and a link connected to said pins,substantially as described.

24. In a broom sewing machine, the combination of means for holding thebroom; means for drawingthe thread or band through the broom comprisingreciprocating needles; a rotary unthreader for unthreading each needleat the end of its stroke; and a rotary threader for threading' eachneedle at the beginning of its stroke; said threader comprising a sleevehaving a pivotally mounted arm projecting theret-hrough, means formoving said arm; and said unthreader comprising an arm, and a spoolmounted on the end thereof, said spool having an enlarged outer endportion, substantially as described.

25. In a broom sewing machine, the combination of a main frame; sewingmechanism comprising needles carried by said frame; means forreciprocating said needles; a rotary threader adapted to draw the threador band into the eye of each of said needles at the beginning of thestroke, said threaders comprising each a cylinder having a pivotallymounted arm projecting therethrough; and means for moving said arm,substantially as described.

26. In a broom sewing machine, the combination of a main frame; meanssupported thereon for holding a broom; sewing mechanism thereforcomprising a pair of reciprocating needles disposed on opposite sides ofsaid frame; a rotary unthreader for each needle adapted to unthread theneedle near the end of each stroke; and a rotary threader for eachneedle adapted to thread said needle near the beginning of each stroke;said threaders comprising each a cylinder, an arm pivotally mounted onsaid cylinder and projecting therethrough, said arm having a portionthereof adapted to lie against the outer surface of the cylinder, and acam element adapted to engage with and actuate said arm; and saidunthreaders comprising each an arm and a spool mounted on the endthereof, substantially as described.

27. In a broom sewing machine, the combination of a main frame; meansfor clamping a broom therein; sewing mechanism comprising reciprocatingneedles adapted to draw the thread or band through the broom; and arotary unthreader adapted to disengage the thread or band from eachneedle at about the end of its stroke, said unthreaders comprising eachan arm, and a spool mounted on the end thereof, said spool having anenlarged end portion, substantially as described.

28. In a broom sewing machine, the combination of a main frame; a broomholding vise carried thereby; means for feeding said vise step by stepduring the sewing operation; sewing mechanism comprising a pair ofreciprocating needles adapted to draw the thread or band through thebroom, each of said needles having an eye; a member movable within andlengthwise of the needle and adapted to normally vclose said eye; a stopfor each needle mounted on said frame and adapted to move said memberand open the eye of the needle; a rotary threader and unthreader foreach needle adapted to unthread the needle near the end of each stroke,and to thread each needle near the beginning of each stroke, saidthreaders comprising each a cylinder, an arm pivotally mounted on saidcylinder and projecting therethrough, said arm having a portion thereofadapted to lie against the outer surface of the cylinder, and a camelement adapted to engage with and actuate said arm; and saidunthreaders comprising each an arm and a spool mounted on the endthereof, substantially as described.

In testimony whereof, I aiiiX my signature, in presence of twowitnesses.

. ANDREW E. MILLER.

IVitnesses J. S. GIUSTA, GEO. B. IIT'rs.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

